| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hadoop.streaming; |
| |
| import java.io.DataOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileUtil; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import static org.junit.Assert.*; |
| |
| public class TestTypedBytesStreaming { |
| |
| protected File INPUT_FILE = new File("input.txt"); |
| protected File OUTPUT_DIR = new File("out"); |
| protected String input = "roses.are.red\nviolets.are.blue\nbunnies.are.pink\n"; |
| protected String map = UtilTest.makeJavaCommand(TypedBytesMapApp.class, new String[]{"."}); |
| protected String reduce = UtilTest.makeJavaCommand(TypedBytesReduceApp.class, new String[0]); |
| protected String outputExpect = "are\t3\nred\t1\nblue\t1\npink\t1\nroses\t1\nbunnies\t1\nviolets\t1\n"; |
| |
| public TestTypedBytesStreaming() throws IOException { |
| UtilTest utilTest = new UtilTest(getClass().getName()); |
| utilTest.checkUserDir(); |
| utilTest.redirectIfAntJunit(); |
| } |
| |
| protected void createInput() throws IOException { |
| DataOutputStream out = new DataOutputStream(new FileOutputStream(INPUT_FILE.getAbsoluteFile())); |
| out.write(input.getBytes("UTF-8")); |
| out.close(); |
| } |
| |
| protected String[] genArgs() { |
| return new String[] { |
| "-input", INPUT_FILE.getAbsolutePath(), |
| "-output", OUTPUT_DIR.getAbsolutePath(), |
| "-mapper", map, |
| "-reducer", reduce, |
| "-jobconf", "mapreduce.task.files.preserve.failedtasks=true", |
| "-jobconf", "stream.tmpdir="+System.getProperty("test.build.data","/tmp"), |
| "-io", "typedbytes" |
| }; |
| } |
| |
| @Before |
| @After |
| public void cleanupOutput() throws Exception { |
| FileUtil.fullyDelete(OUTPUT_DIR.getAbsoluteFile()); |
| INPUT_FILE.delete(); |
| createInput(); |
| } |
| |
| @Test |
| public void testCommandLine() throws Exception { |
| // During tests, the default Configuration will use a local mapred |
| // So don't specify -config or -cluster |
| StreamJob job = new StreamJob(); |
| job.setConf(new Configuration()); |
| job.run(genArgs()); |
| File outFile = new File(OUTPUT_DIR, "part-00000").getAbsoluteFile(); |
| String output = StreamUtil.slurp(outFile); |
| outFile.delete(); |
| System.out.println(" map=" + map); |
| System.out.println("reduce=" + reduce); |
| System.err.println("outEx1=" + outputExpect); |
| System.err.println(" out1=" + output); |
| assertEquals(outputExpect, output); |
| } |
| } |